Fair point.
What about cars or houses?
> no amount of money can get you a better Coke than the one the bum on the corner is drinking
Doesn't the fact that the original quote literally acknowledges "bums on the corner" imply that he wasn't referring to housing at all?
I probably have a better house in Utah than many Silicon Valley CEOs have in the Bay Area, but they have better weather.
That fancy Lamborghini is going to be sitting in the same traffic as my Honda.
A Tesla will out accelerate all but the most niche cars now. Even the cheapest cars can have giant screens and climate control. I don't think they are equal to a Rolls Royce, but extreme luxury has greater diminishing returns now than at any point in history.
Where I live pretty much all new houses are being built with granite counter tops and hardwood floors. Whether that's a good thing is a whole other topic ...
The real question is what about toilets. You'd think they're all the same, but a $700 Toto bidet with a heated seat that cleans your butthole with warm water is a better experience than using toilet paper.
Personally I don't envy an "high-end" car (RR, McLaren, Ferrari, Porsche, etc.), or a big mansion which needs a horde of people to run.
I personally developed a feeling for things which are at the edge of "diminishing returns" curve. I get the things which are high-end enough, but not in the "pay 3x more to get 1% more" region.